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Author Question: Which of the following elements is a lanthinide? A) U B) Pm C) Rf D) ... (Read 11 times)

geoffrey

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on: Aug 27, 2018
Which of the following elements is a lanthinide?
 
  A) U
  B) Pm
  C) Rf
  D) Po

Question 2

A student performs an experiment to determine the density of a sugar solution. She obtains the following results: 4.71 g/mL, 4.73 g/mL, 4.67 g/mL, 4.69 g/mL.
 
  If the actual value for the density of the sugar solution is 4.40 g/mL, which statement below best describes her results?
  A) Her results are precise, but not accurate.
  B) Her results are accurate, but not precise.
  C) Her results are both precise and accurate
  D) Her results are neither precise nor accurate.
  E) It isn't possible to determine with the information given.


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yasmin

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Reply #1 on: Aug 27, 2018
Answer to Question 1

B

Answer to Question 2

A


geoffrey

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Reply 2 on: Aug 27, 2018
Great answer, keep it coming :)

bbburns21

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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